Candidates can take the NMAT up to three times (1 main attempt and 2 retakes) within a testing year. However, a mandatory gap of at least 15 days is required between any two attempts. For example, if you take your first exam on November 1st, the earliest you can schedule your second attempt is November 16th. This rule applies even if you are a 'No Show' for an attempt, as 'No Shows' still count toward your total attempt limit.